I have been diagnosed with sleep apnea during an overnight VA facility test, and have an APAP machine . My psychologist who monitors my PTSD, ( 50 % disability) suggested I take the test . I have been told you need to have been diagnosed with sleep issues during my period of service . I am a Vietnam vet . To my knowledge there was no such thing back in 1967 thru 1970 period where I spent 3 consecutive years as a medic in the Far East theater. I didn’t even have one medical exam during that time for anything . Just self treatment.
My question: is is true you need to have been diagnosed while in the military?